North Basin
E269166
North Basin is a prominent glacial cirque on Maine’s Mount Katahdin, known for its steep walls and rugged alpine terrain.
All labels observed (1)
| Label | Occurrences |
|---|---|
| North Basin canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2423604 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: North Basin Context triple: [Mount Katahdin, hasGlacialCirque, North Basin]
-
A.
Grand Basin
Grand Basin is a large ornamental water feature and central gathering area in Forest Park in St. Louis, known for its fountains, surrounding lawns, and views of the Saint Louis Art Museum.
-
B.
South Basin
South Basin is a prominent glacial cirque on Maine’s Mount Katahdin, characterized by steep rock walls and a bowl-shaped valley formed by ancient glacial erosion.
-
C.
Owens Valley
Owens Valley is a long, arid valley in eastern California, lying between the Sierra Nevada and the White/Inyo Mountains and known for its dramatic scenery and historic water diversions to Los Angeles.
-
D.
Carson Valley
Carson Valley is a scenic agricultural and residential valley in western Nevada known for its ranching heritage, mountain views, and proximity to the eastern Sierra Nevada.
-
E.
Sevier Lake
Sevier Lake is a large, typically dry terminal lake in central Utah’s Great Basin, known for its fluctuating water levels and saline playa environment.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: North Basin Target entity description: North Basin is a prominent glacial cirque on Maine’s Mount Katahdin, known for its steep walls and rugged alpine terrain.
-
A.
Grand Basin
Grand Basin is a large ornamental water feature and central gathering area in Forest Park in St. Louis, known for its fountains, surrounding lawns, and views of the Saint Louis Art Museum.
-
B.
South Basin
South Basin is a prominent glacial cirque on Maine’s Mount Katahdin, characterized by steep rock walls and a bowl-shaped valley formed by ancient glacial erosion.
-
C.
Owens Valley
Owens Valley is a long, arid valley in eastern California, lying between the Sierra Nevada and the White/Inyo Mountains and known for its dramatic scenery and historic water diversions to Los Angeles.
-
D.
Carson Valley
Carson Valley is a scenic agricultural and residential valley in western Nevada known for its ranching heritage, mountain views, and proximity to the eastern Sierra Nevada.
-
E.
Sevier Lake
Sevier Lake is a large, typically dry terminal lake in central Utah’s Great Basin, known for its fluctuating water levels and saline playa environment.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
glacial cirque
ⓘ
landform ⓘ |
| climateZone | cold continental ⓘ |
| conservationStatus | protected area within Baxter State Park ⓘ |
| drainage | headwaters of streams flowing from Mount Katahdin ⓘ |
| hasAccess | backcountry trails ⓘ |
| hasEcosystem |
alpine tundra
ⓘ
subalpine forest ⓘ |
| hasFeature | steep cirque walls ⓘ |
| hasHazard |
rapidly changing mountain weather
ⓘ
steep rocky terrain ⓘ |
| hasOrigin | glacial erosion ⓘ |
| hasTerrain | rugged alpine terrain ⓘ |
| knownFor |
dramatic glacially carved amphitheater
ⓘ
remote backcountry character ⓘ |
| locatedIn |
Maine
ⓘ
United States of America ⓘ
surface form:
United States
|
| locatedOn | Mount Katahdin ⓘ |
| mountainRange | Appalachian Mountains ⓘ |
| partOf | Baxter State Park ⓘ |
| regulation | subject to Baxter State Park backcountry use rules ⓘ |
| relativeLocation | northern side of Mount Katahdin massif ⓘ |
| usedFor |
backcountry camping
ⓘ
hiking ⓘ mountaineering ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: North Basin Description of subject: North Basin is a prominent glacial cirque on Maine’s Mount Katahdin, known for its steep walls and rugged alpine terrain.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.